CN220041751U - Overload alarm non-tripping device for circuit breaker - Google Patents
Overload alarm non-tripping device for circuit breaker Download PDFInfo
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- CN220041751U CN220041751U CN202321551656.3U CN202321551656U CN220041751U CN 220041751 U CN220041751 U CN 220041751U CN 202321551656 U CN202321551656 U CN 202321551656U CN 220041751 U CN220041751 U CN 220041751U
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- circuit breaker
- overload
- tripping
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- 230000007246 mechanism Effects 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000001737 promoting effect Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract 1
- 230000001960 triggered effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of circuit breakers, in particular to an overload alarm non-tripping device of a circuit breaker, which comprises a base, wherein an electric leakage controller is arranged in the base, a bracket is fixedly arranged in the base and positioned at one side of the electric leakage controller, an alarm traction rod, a micro switch and a reset torsion spring are arranged on the bracket, the alarm traction rod is used for rotating and triggering the micro switch, the micro switch is used for sending an alarm signal, the reset torsion spring is used for driving the alarm traction rod to reset, when overload occurs on a circuit, the alarm traction rod is driven to rotate by bending of a bimetal element, the micro switch is triggered by the alarm traction rod, and the micro switch sends an alarm signal, so that the circuit breaker has the overload alarm function but not to trip, continuous power supply is ensured when overload occurs, and the economic loss and potential safety hazards caused by sudden stop of electrical equipment connected with the circuit breaker due to sudden power failure are avoided.
Description
Technical Field
The utility model relates to the technical field of circuit breakers, in particular to an overload alarm non-tripping device of a circuit breaker.
Background
A circuit breaker refers to a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time.
There is trip gear in the circuit breaker, trip when overload and electric leakage appear in the circuit to the security when guaranteeing the circuit breaker and using, trip gear and electric leakage circuit breaker for electric leakage circuit breaker that like patent application number "CN201711119599.0" put forward are equipped with the spring couple on the casing, and reset extension spring's both ends are connected with spring coupling portion and spring couple respectively. The tripping device has the advantages of reasonable structure, quick tripping, high breaking capacity and good use effect.
In the prior art, as a circuit breaker is proposed in patent application number CN201711119599.0, when overload occurs in a circuit, a release can be tripped, so that the circuit is disconnected, the circuit cannot continuously supply power, and the sudden power failure and the stop of the operation of an electrical appliance can possibly cause economic loss and potential safety hazard.
Disclosure of Invention
The utility model aims to provide an overload alarm non-tripping device for a circuit breaker so as to solve the problems in the background technology.
The aim of the utility model can be achieved by the following technical scheme:
the utility model provides a circuit breaker overload alarm trip unit, includes the base, the inside of base is provided with leakage controller, the inside of base just is located one side fixed mounting of leakage controller and has the support, installs warning traction lever, micro-gap switch and reset torsion spring on the support, and the warning traction lever is used for rotating and triggering micro-gap switch, and micro-gap switch is used for sending alarm signal, and reset torsion spring is used for driving the warning traction lever and resets.
The inside of base and be located one side of warning traction lever be provided with can be because of the bent bimetal element of overload heating, bimetal element crooked be used for promoting the warning traction lever rotate, be provided with on the bimetal element be used for with the adjusting screw of warning traction lever contact.
Preferably, the support is fixedly connected with a central shaft, and the central shaft penetrates through the alarm traction rod and the reset torsion spring, so that the alarm traction rod rotates by taking the central shaft as an axle center.
Preferably, a moving contact assembly is arranged in the base, and an arc extinguishing chamber is arranged in the base and at the part of the moving contact assembly, which is used for contacting with the fixed contact.
Preferably, the movable contact assembly is provided with a circuit breaking control mechanism for driving the movable contact assembly to move.
Preferably, the base is detachably connected to the protective shell, and the protective shell is provided with a control switch capable of rotating up and down, and the control switch is connected with the circuit breaking control mechanism and used for driving the circuit breaking control mechanism to move.
Preferably, a tripping assembly is arranged in the base, a tripping switch is arranged at the top of the bracket, and the tripping switch is electrically connected with the tripping assembly.
Preferably, the two ends of the base are provided with a conductive member and a fixing bolt for connecting an external circuit.
The utility model has the beneficial effects that:
when overload occurs on the circuit, the bimetal element bends to drive the alarm traction rod to rotate, the alarm traction rod triggers the micro switch, and the micro switch sends out an alarm signal, so that the circuit breaker has the functions of overload alarm but no tripping, continuous power supply is ensured during overload, and the economic loss and potential safety hazard caused by sudden stop of the operation of electrical equipment connected with the circuit breaker due to sudden power failure caused by overload are avoided, and meanwhile, the circuit breaker also has the functions of short-circuit instantaneous tripping and electric leakage tripping.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort;
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic view of the structure of the interior of the base of FIG. 1 according to the present utility model;
FIG. 3 is a rear view of the base of the bracket of FIG. 2 with the bracket removed in accordance with the present utility model;
fig. 4 is an enlarged view of the structure of fig. 3 a according to the present utility model.
Reference numerals in the drawings are as follows:
1. the electric leakage control device comprises a base, 2, an electric leakage controller, 3, a support, 4, an alarm traction rod, 5, a trigger micro switch, 6, a reset torsion spring, 7, a bimetal element, 8, a central shaft, 9, a moving contact assembly, 10, an arc extinguishing chamber, 11, a circuit breaking control mechanism, 12, a protective shell, 13, a control switch, 14, a tripping assembly, 15, a tripping switch, 16, a conducting piece, 17 and a fixing bolt.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a circuit breaker overload alarm trip unit, includes base 1, the inside of base 1 is provided with electric leakage controller 2, the inside of base 1 just is located one side fixed mounting of electric leakage controller 2 and has support 3, installs warning traction lever 4, micro-gap switch 5 and reset torsion spring 6 on the support 3, and warning traction lever 4 is used for rotating and triggers micro-gap switch 5, and micro-gap switch 5 is used for sending alarm signal, and reset torsion spring 6 is used for driving warning traction lever 4 and resets.
The inside of base 1 and lie in one side of warning traction lever 4 be provided with can be because of the overload heating and crooked bimetal element 7, bimetal element 7 crooked be used for promoting warning traction lever 4 rotate, be provided with on the bimetal element 7 be used for with warning traction lever contact adjusting screw 71.
As shown in fig. 1 and 4, the base 1 is a plastic shell, the leakage controller 2 and the bracket 3 can be fixed in the base 1 through bolts or buckles, the alarm traction rod 4 is a cross rod, a cavity is formed in the bottom of one end of the cross rod, and the reset torsion spring 6 is connected to the cavity at the bottom of one end of the alarm traction rod and the bracket 3.
The support 3 is fixedly connected with a central shaft 8, and the central shaft 8 penetrates through the alarm traction rod 4 and the reset torsion spring 6, so that the alarm traction rod 4 rotates by taking the central shaft 8 as an axle center.
As shown in fig. 2, 3 and 4, the central shaft 8 and the alarm pull rod 4 are fixed on the inner side of the bracket 3, and the alarm pull rod 4 can rotate around the central shaft 8 as an axle center.
The base 1 is internally provided with a moving contact assembly 9, and an arc extinguishing chamber 10 is arranged in the base 1 and positioned at a part of the moving contact assembly 9 for contacting with a fixed contact.
As shown in fig. 2 and 3, the fixed contact (not shown in the drawings) is located below the arc extinguishing chamber, and one side of the arc extinguishing chamber is provided with an opening, so that the moving contact assembly 9 can rotate below the arc extinguishing chamber 10 to be in contact with the fixed contact.
The movable contact assembly 9 is provided with a circuit breaking control mechanism 11 for driving the movable contact assembly 9 to move.
The base 1 is detachably connected to the protective shell 12, a control switch 13 capable of rotating up and down is arranged on the protective shell 12, and the control switch 13 is connected with the circuit breaking control mechanism 11 and is used for driving the circuit breaking control mechanism 11 to move.
As shown in fig. 1 and 2, when the control switch 13 is toggled up and down, the control switch 13 drives the moving contact assembly 9 to move through the circuit breaking control mechanism 11, so that the moving contact assembly 9 is convenient to contact or separate from a fixed contact positioned below the arc extinguishing chamber 10.
The inside of base 1 is provided with tripping device 14, and the top of support 3 is provided with tripping switch 15, and tripping switch 15 and tripping device 14 electric connection.
As shown in fig. 1 and 2, the trip assembly 14 may be manually controlled to trip by depressing the trip switch 15.
The base 1 is provided at both ends with a conductive member 16 and a fixing bolt 17 for connecting an external circuit.
As shown in fig. 1 and 2, the external wiring may be fixed to the conductive member 16 by a fixing bolt 17. Completing the communication of the breaker circuit.
The working principle of the overload alarm non-tripping device of the circuit breaker provided by the utility model is as follows:
when overload occurs on the circuit, the bimetal element 7 bends forward slowly due to overload heating, the adjusting screw 71 fixed on the bimetal element 7 moves along with the bimetal element 7, and contacts the alarm pull rod 4 after the bimetal element 7 heats for a period of time, so that the alarm pull rod 4 is pushed, the alarm pull rod 4 rotates, after the alarm pull rod 4 rotates to a certain angle, the bulge on the alarm pull rod 4 presses the trigger part on the micro switch 5, so that the micro switch 5 is connected, an alarm signal is sent, and the tripping component 14 cannot trip immediately.
When the fault is removed, the current is restored, the bimetal element 7 is gradually reset, the adjusting screw 71 leaves the alarm pull rod 4, the torsion of the reset torsion spring 6 enables the alarm pull rod 4 to reset, the micro switch 5 is disconnected, and the alarm signal is released.
After receiving or observing the alarm signal, the worker can overhaul the fault, and when short circuit or electric leakage occurs, the tripping component 14 can trip in time.
Compared with the related art, the overload alarm non-tripping device for the circuit breaker has the following beneficial effects:
when overload occurs on the circuit, the bimetal element 7 bends to drive the alarm traction rod 4 to rotate, the alarm traction rod 4 triggers the micro switch 5, and the micro switch 5 sends out an alarm signal, so that the circuit breaker has the functions of overload alarm but no tripping, continuous power supply is ensured when overload occurs, and the economic loss and potential safety hazard caused by sudden stopping of the operation of the electrical equipment connected with the circuit breaker due to sudden power failure caused by overload are avoided, and meanwhile, the circuit breaker also has the functions of short-circuit instantaneous tripping and electric leakage tripping.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.
Claims (7)
1. The utility model provides a circuit breaker overload alarm non-tripping device, includes base (1), the inside of base (1) is provided with electric leakage controller (2), a serial communication port, the inside of base (1) just is located one side fixed mounting of electric leakage controller (2) has support (3), install alarm traction lever (4), micro-gap switch (5) and reset torsion spring (6) on support (3), alarm traction lever (4) are used for rotating and trigger micro-gap switch (5), micro-gap switch (5) are used for sending alarm signal, reset torsion spring (6) are located the inboard of alarm traction lever (4), are used for driving alarm traction lever (4) and reset;
the inside of base (1) and be located one side of warning traction lever (4) be provided with can be because of overload heating and crooked bimetal element (7), bimetal element (7) crooked be used for promoting warning traction lever (4) rotate, be provided with on bimetal element (7) be used for with warning traction lever contact adjusting screw (71).
2. The overload alarm non-tripping device for the circuit breaker according to claim 1, wherein a central shaft (8) is fixedly connected to the bracket (3), and the central shaft (8) penetrates through the alarm pull rod (4) and the reset torsion spring (6) so that the alarm pull rod (4) rotates by taking the central shaft (8) as an axis.
3. The overload warning and trip-preventing device for the circuit breaker according to claim 1 is characterized in that a moving contact assembly (9) is arranged inside the base (1), and an arc extinguishing chamber (10) is arranged inside the base (1) and at a part, which is used for being contacted with a fixed contact, of the moving contact assembly (9).
4. A circuit breaker overload alarm non-tripping device according to claim 3, characterized in that the moving contact assembly (9) is provided with a circuit breaking control mechanism (11) for driving the moving contact assembly (9) to move.
5. The overload alarm non-tripping device for the circuit breaker according to claim 4, wherein the base (1) is detachably connected to a protective shell (12), a control switch (13) capable of rotating up and down is arranged on the protective shell (12), and the control switch (13) is connected with the circuit breaking control mechanism (11) and is used for driving the circuit breaking control mechanism (11) to move.
6. The overload alarm non-tripping device for the circuit breaker according to claim 5, wherein a tripping assembly (14) is arranged in the base (1), a tripping switch (15) is arranged at the top of the bracket (3), and the tripping switch (15) is electrically connected with the tripping assembly (14).
7. The overload warning and trip-preventing device for circuit breaker according to claim 1, wherein the base (1) is provided with a conductive member (16) and a fixing bolt (17) at both ends for connecting an external circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321551656.3U CN220041751U (en) | 2023-06-19 | 2023-06-19 | Overload alarm non-tripping device for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321551656.3U CN220041751U (en) | 2023-06-19 | 2023-06-19 | Overload alarm non-tripping device for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220041751U true CN220041751U (en) | 2023-11-17 |
Family
ID=88744273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321551656.3U Active CN220041751U (en) | 2023-06-19 | 2023-06-19 | Overload alarm non-tripping device for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220041751U (en) |
-
2023
- 2023-06-19 CN CN202321551656.3U patent/CN220041751U/en active Active
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